Jihadists in Iraq Erase Cultural Heritage

BAGHDAD—A campaign by Sunni insurgents to establish an Islamic caliphate across Iraq and Syria and expel other Muslim sects and religions is taking a sharp toll on the countries' cultural heritage.

The latest casualty was a shrine in the northern Iraqi city of Mosul said to contain the tomb of Jonah, who is revered as a prophet by Jews, Christians and Muslims—who call him Younes. The Nabi Younes Mosque, a towering structure that...